javax.swing.text.BadLocationException: Invalid offset=-1 not within <0, 6>
	at org.netbeans.editor.Utilities.checkOffsetValid(Utilities.java:1227)
	at org.netbeans.editor.Utilities.checkOffsetValid(Utilities.java:1222)
	at org.netbeans.editor.Utilities.getRowStart(Utilities.java:126)
	at org.netbeans.editor.Utilities.getRowStart(Utilities.java:109)
	at org.netbeans.modules.web.core.syntax.JspFormatter.reformat(JspFormatter.java:248)
	at org.netbeans.editor.ext.ExtFormatter.reformat(ExtFormatter.java:274)
	at org.netbeans.editor.ActionFactory$FormatAction.actionPerformed(ActionFactory.java:954)
	at org.netbeans.editor.BaseAction.actionPerformed(BaseAction.java:194)
	at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1571)
	at javax.swing.JComponent.processKeyBinding(JComponent.java:2763)
	at javax.swing.JComponent.processKeyBindings(JComponent.java:2798)
	at javax.swing.JComponent.processKeyEvent(JComponent.java:2726)
	at java.awt.Component.processEvent(Component.java:5265)
	at java.awt.Container.processEvent(Container.java:1966)
	at java.awt.Component.dispatchEventImpl(Component.java:3955)
	at java.awt.Container.dispatchEventImpl(Container.java:2024)
	at java.awt.Component.dispatchEvent(Component.java:3803)
	at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1810)
	at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:672)
	at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:920)
	at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:798)
	at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:636)
	at java.awt.Component.dispatchEventImpl(Component.java:3841)
	at java.awt.Container.dispatchEventImpl(Container.java:2024)
	at java.awt.Window.dispatchEventImpl(Window.java:1774)
	at java.awt.Component.dispatchEvent(Component.java:3803)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)